Names can be selected from one of the following indexes or directly from the search box below. Frequent users of these indexes should delete their cache often as the indexes are being updated regularly.

Although we consider this Catalogue the most complete ever published for New World grasses, it can never be complete because new discoveries and new taxonomic interpretations are being published on a steady basis. Such new data is added as soon as we become aware of it. Existing entries are also being updated as corrected or more complete information becomes available or as new interpretations and taxonomic decisions are made. Partly for this reason, CNWG is presented as a dynamic website. All web pages are assembled from the TROPICOS database when a request is made, thus assuring that the latest (and hopefully best possible) data is provided for the user. The editors welcome all comments and corrections.

The following four volumes were published from 2000 to 2003 to provide a printed record of the Catalogue. Corrections and additions to the printed volumes have been included in this on-line version of the Catalogue, with comments when necessary. This on-line version of the Catalogue should always be considered the most authoritative and up-to-date version of the Catalogue.

2. Voucher specimen data (incomplete). At the moment we make available all specimen citations that have been recorded in TROPICOS, whether these have been verified by a CNWG contributor or not; therefore be cautious when using this data. To check whether individual collections have been verified by a CNWG contributor, click on a specimen record and check the Det. by field.

3. Maps (limited at this point to specimens with recorded geographical coordinates).

Distribution is indicated by Country or Caribbean Region in alphabetical order as given in the following list. For many taxa, more detailed distributional information can be obtained from lists of specimen records and maps derived from these. This data can be accessed by clicking on the button labeled: specimen lists and maps. Please note that for most species this more detailed information is still very incomplete, but it is augmented on a regular basis.

Definitions of common terms and abbreviations used in headings and especially in NOTES:

as syn. = invalid name originally published as a synonym of another, earlier validly published name

Basionym: A name on which combinations, if any, are based.

Blocking Name: A name preventing the adoption of another name (most often an earlier homonym, sometimes a name that would result in a tautonym if transferred, or a name that would result in a homonym if transferred).

Correct Name: A nomenclaturally valid and legitimate name that should have been adopted under the rules of the current International Code of Botanical Nomenclature for an illegitimate name.

Cultivated = Cultivated and of extra New World origin

DH = Donna Herendeen

Excluded = Excluded from CNWG, previously said to occur in the region, but its occurrence in the New World is now known to be in error.

Earlier Name: The homonym with priority.

GD = Gerrit Davidse

hom. illeg. = illegitimate name, a later homonym

Introduced = Introduced into the New World

isonym. = a later publication of a combination already validly published, sometimes indicating emendation of usage

Next Higher Taxon: The genus or species under which an infrageneric taxon or infraspecific taxon was placed by the original author (important in the case of homonyms, and to establish hierarchical links in the database).

nom. nud. = naked name, name without description

nom. inval. = invalid name

nom. illeg. = illegitimate name

nom. illeg. superfl. = superfluous illegitimate name

nom. nov. = nomen novum or new name, an avowed substitute name for a later homonym

Kinds of Types: CT = conserved type, ET = epitype, IET=isoepitype, HT = holotype, ILT = isolectotype, INT = isoneotype, IST = isosyntype, IT = isotype, LT = lectotype, NT = neotype, PT = paratype, ST = syntype, T = any type material whose exact status is unknown; OM = original material; fragm. = fragment of another type (mainly used for incomplete specimens or fragments taken from complete specimens at other herbaria; under current rules of the International Code of Botanical Nomenclature automatically considered to be an isotype if a holotype was designated in the protologue); V = voucher specimen(s) associated with invalidly published names at the first time an invalid name appeared in print

Other Uses: Combinations and New Names derived from a basionym.

PMP = Paul Peterson

Replaced Name: A name (later homonym) for which a nomen novum is required.